Our build process will hopefully be documented here in the days / weeks / months to come, but to start things off and get everyone up to speed. Check out the links on the sidebar to get to some valuable information about MT technology and what we're looking to achieve with this project.
Here is the status of our project at the start of this blog:
Projector:
BenQ Mainstream MP522 ST - A short throw projector that should fit our needs well
Vision system:
Modified PS3Eye from PeauProductions.com - has been modified to include a suitable IR bandpass filter (meaning the camera will only see light in the IR range, specifically 850nm wavelength) as well as an adjustable M12 camera mount and lense. This is a standard lense mount for cameras and will allow us to focus and fine tune our vision area to achieve the best blobs possible
Lighting:
5m long flexible strip of IR LEDs from EnvironmentalLights.com - specially made 8mm wide flexible strip of SMD mount IR LEDs that will essentially be wrapped around the edge of our acrylic surface to provide IR light from within the acrylic layer itself. This item has been ordered with accompanying 60W power supply
Acrylic Layer:
33”x25”x8mm sheet of EndLighten acrylic - A special made type of acrylic that has been manufactured with a lot of very small reflective bits, which essentially will diffuse the IR light coming from the edges uniformly. This piece of acrylic will “glow” with IR light, which will be reflected downward when someone touches the surface. Due to high degree of illumination, no compliant surface layer will be needed, though an extra layer of very thin acrylic may be placed on top to prevent scratching. HUGE thanks to Eli Fox-Epstein from the NUIGroup.com forums for providing us with this acrylic and being super patient while payment was sorted out.
Once we have all of these parts we will test them out and then design a free-standing table to house them in.
Status of parts:
Projector - ordered
Vision system - acquired
Lighting - acquired
Acrylic - ordered
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